Friday, August 9, 2013

Shade on a Graphing Calculator Using the Shade Command

Shading on a graphing calculator is a great way to visually indicate overlap, whether between two inequalities or two lines. For instance, if you want to shade the space below one equation and above another, you can use your graphing calculator to indicate where these points are located. You may have to do such work in advanced math or science courses, and shading on your calculator makes it possible to check your work.

Instructions
1. Access the y=? portion of your calculator, and enter the functions of interest. Let's say, for our purposes, that you want to shade the area above y=x^2 and below y=x. Enter x^2 into the Y1= prompt, and enter x into the Y2= prompt.

2. Access the "draw" menu, and from the menu, select the "Shade" command. Your calculator will display the Shade function along with open brackets.
  
3. Enter the function, first, that you would like to shade above, then enter the function that you would like to shade below. In this example, the prompt would look like Shade(Y1, Y2).

4. Hit the "Enter" button. The calculator will shade as you requested.

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